Quarter	US Dollars, sum over component sub-periods
2003-01-01	969300000.00000000
2003-04-01	-1276600000.00000000
2003-07-01	56200000.00000000
2003-10-01	-114500000.00000000
2004-01-01	91300000.00000000
2004-04-01	24520000.00000000
2004-07-01	-136200000.00000000
2004-10-01	-170400000.00000000
2005-01-01	-375200000.00000000
2005-04-01	1611300000.00000000
2005-07-01	-963600000.00000000
2005-10-01	1443200000.00000000
2006-01-01	-1071099999.99999990
2006-04-01	1420700000.00000000
2006-07-01	-74950000.00000000
2006-10-01	1722799929.00000000
2007-01-01	-4122214318.99999950
2007-04-01	2538071307.00000000
2007-07-01	-1951523496.00000000
2007-10-01	321524395.00000000
2008-01-01	349334918.59999996
2008-04-01	2419404040.00000000
2008-07-01	4615160503.00000000
2008-10-01	-939653625.80000000
2009-01-01	459644188.30000000
2009-04-01	-462745805.59999996
2009-07-01	2117297889.00000000
2009-10-01	-466448875.20000000
2010-01-01	855523766.19999990
2010-04-01	350054948.90000000
2010-07-01	33162005.10000000
2010-10-01	1785092269.00000000
2011-01-01	2908334281.00000000
2011-04-01	2951740839.00000000
2011-07-01	3650325069.00000000
2011-10-01	4679695265.00000000
2012-01-01	-2840719641.00000000
2012-04-01	1787606224.00000000
2012-07-01	-918673636.50000000
2012-10-01	1604999084.00000000
2013-01-01	-1234316571.00000000
2013-04-01	1772816169.00000000
2013-07-01	764545771.60000000
2013-10-01	-991630107.30000000
2014-01-01	-134464827.79999998
2014-04-01	-110063525.50000000
2014-07-01	179648129.29999998
2014-10-01	1121735292.00000000
2015-01-01	-604672408.90000010
2015-04-01	-289326084.50000000
2015-07-01	370425380.09999996
2015-10-01	734694469.19999990
2016-01-01	137190049.00000000
2016-04-01	244459488.50000000
2016-07-01	-301761949.50000000
2016-10-01	1725205033.00000000
2017-01-01	-1986586560.00000000
2017-04-01	-575783681.40000000
2017-07-01	-1452893553.00000000
2017-10-01	1265663032.00000000
2018-01-01	-1143009032.00000000
2018-04-01	-393299505.80000000